Malware spam: "Attached Image" leads to Locky

This spam appears to come from the user's own email address, but this is just a simple forgery. It has a malicious attachment.

From:    victim@victimdomain.tld
To:    victim@victimdomain.tld
Date:    26 July 2016 at 10:27
Subject:    Attached Image

**********************************************************************
The information in this email is confidential and may be privileged.
If you are not the intended recipient, please destroy this message
and notify the sender immediately.
**********************************************************************

Attached is a ZIP file with a name apparently made up of random numbers, containing a malicious .js script with another random number, such as this one. In this example the script downloads a malicious binary from:

www.isleofwightcomputerrepairs.talktalk.net/okp987g7v

There will be many other scripts with different download locations and perhaps other binaries. The file downloaded is Locky ransomware with a detection rate of 4/54. The Hybrid Analysis for the dropped file shows it phoning home to:

31.41.47.41/upload/_dispatch.php (Relink Ltd, Russia)
91.234.35.216/upload/_dispatch.php (FOP Sedinkin Olexandr Valeriyovuch aka thehost.ua, Ukraine)

Recommended blocklist:
31.41.47.41
91.234.35.216